
Kingsdown Twin High Profile Foundation
SKU: 50283476
Kingsdown foundations are meticulously hand assembled using sustainably sourced Canadian Spruce, which is exceptionally durable. Each piece of lumber is not only heat-treated, but kiln-dried, which improves the performance of the wood over time. Each wooden slat is placed more closely together and cut a full inch wider than most manufacturers to provide a sturdier base.
Collection
Box Spring
Warranty
10 year limited warranty -
Code J -
View WarrantyColor
Black
Mattress foundation profile
High profile
Profile height
9 inch
Upholstery material
Fabric
Q&A answers generated with AI assistance.
Is a 9-inch foundation suitable for a child’s twin bed or a smaller apartment space?
When selecting a foundation for a child's room or a compact apartment, consider the total height of the bed. A 9-inch high-profile base provides a traditional look but will significantly raise the height of the mattress. For a younger child, you may want to measure the total height with the mattress to ensure they can climb in and out safely. For apartment dwellers, this foundation offers a robust support system in a standard twin footprint (75"l x 39"w), making it a durable choice for growing teens or guest rooms where space is at a premium.
Is any assembly required for this twin mattress foundation?
No customer assembly is required. This unit is fully assembled at the factory to ensure maximum structural integrity and a squeak-free performance. Based on our delivery standards, our team handles the heavy lifting, so your foundation is ready for use immediately upon arrival.
How does the construction of this foundation support my mattress warranty?
Many mattress warranties require a solid, non-yielding base with specific support requirements. This foundation is meticulously hand-assembled with wooden slats that are cut a full inch wider and placed closer together than industry standards. This creates a much sturdier, flatter surface that prevents the mattress from sagging or warping, helping you stay within your mattress manufacturer’s warranty guidelines.
Why is kiln-dried Canadian Spruce a superior material for a mattress base?
This foundation is built from sustainably sourced Canadian Spruce, a wood known for its exceptional durability. The lumber undergoes both heat-treatment and a kiln-drying process, which removes internal moisture. This is particularly beneficial in humid coastal or southern climates, as it prevents the wood from warping, cracking, or squeaking over time, ensuring a stable and silent sleep environment for years.
Will this foundation work with modern memory foam or hybrid mattresses?
Yes. While traditional box springs with coils are often unsuitable for foam beds, this is a true foundation featuring a rigid wooden slat system. The increased surface area provided by the wider, closely-spaced slats makes it an excellent choice for memory foam, latex, and hybrid mattresses, which require consistent, flat support to maintain their structural integrity.
What is the benefit of a 9-inch "high profile" foundation?
A high-profile foundation, like this 9-inch model, is the standard height for traditional bedding. It is ideal for shoppers who prefer a classic, elevated look or for use with lower-profile bed frames. By adding significant height to the sleep surface, it makes getting in and out of bed easier for many adults while providing a commanding presence in the bedroom.
39.00"w x 75.00"d x 9.00"h

4.4 out of 5 stars
QUALITY AND COMPORT PRO
Dan came in and did a great job!!!! I would highly recommend both the product and him for delivery!!
Review provided by Tempur-Pedic
Quality Product
This review was collected as part of a promotion
My husband and I are very happy with our Tempur-Pedic mattress and foundation. The foundation gave some height to our lower bedframe and has provided excellent support for us. We are very happy with our purchase
Review provided by Tempur-Pedic
Love it so far.
This review was collected as part of a promotion
This ultra low-profile foundation is exactly what I was looking for. The 2-inch height gives the bed a clean, modern look and is perfect if you prefer a lower setup or are trying to reduce overall bed height. The charcoal color looks sleek and neutral—it blends well with different bedroom styles and doesn’t draw unnecessary attention, honestly can't even see it under the mattress. The build feels sturdy and supportive. It provides excellent support for the mattress, helping it stay in place without sagging. Overall, this is a great option if you want a minimalist, low-profile foundation that still feels solid and well-made. Highly recommend for anyone wanting a simple, modern bed setup.
Review provided by Tempur-Pedic
Great for our mattress
This review was collected as part of a promotion
This piece goes underneath our mattress and while it is not a super fancy review, it is important to make sure everything is right from the ground up with your Tempur-Pedic. The purchase was flawless, delivery was quick and easy, and it is just what we needed for our amazing Tempur-Pedic bed.
Review provided by Tempur-Pedic
Great product!
This review was collected as part of a promotion
Super easy to slide onto our frame to make sure our mattress lies flat.
Review provided by Tempur-Pedic


